2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000 $12,000,000 $14,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,906,800 | 2,068,938 | 2,068,938 |
| 2006 | $5,001,300 | 1,959,134 | 1,959,134 |
| 2007 | $5,323,500 | 1,883,965 | 1,883,965 |
| 2008 | $7,966,500 | 2,258,586 | 2,258,586 |
| 2009 | $4,413,400 | 1,418,033 | 1,418,033 |
| 2010 | $6,941,900 | 2,205,847 | 2,205,847 |
| 2011 | $12,030,100 | 3,135,637 | 3,135,637 |
Note: Quantity represents Weight in kilograms
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